Skid-Steer Loader Attachment Assemblies and Methods for Performing Earth Augering Using a Skid-Steer Loader

ABSTRACT

Skid-steer loader attachment assemblies configured to perform earth augering are provided. The attachment assemblies can include a pair of outriggers. Methods for performing earth augering using a skid-steer are also provided. The methods can include extending dual outriggers from a boom assembly of a skid-steer to engage substrate; and extending an earth auger into the substrate from an auger assembly that is operably engaged between the dual outriggers. Skid-steer loader and attachment assemblies configured to perform earth augering are also provided. Boring assembly coupling assemblies are also provided.

CROSS REFERENCE TO RELATED APPLICATION

This application claims priority to and the benefit of U.S. Provisional Patent Application Ser. No. 63/173,911 filed Apr. 12, 2021, entitled “Skid-Steer Loader Attachment Assemblies and Methods for Performing Earth Augering Using a Skid-Steer Loader”, the entirety of which is incorporated by reference herein.

TECHNICAL FIELD

The present disclosure relates to construction equipment, and in particular digging and/or boring/auger attachments for machines such as skid-steer loaders. Digging and/or boring adapters for augers are also described as boring assembly coupling assemblies.

BACKGROUND

Construction machines are used with attachments to dig or bore during construction. These machines are typically substantial in size and the attachments are likewise substantial in size. Excavators are exemplary of these very large machines. The size and expense of these machines are just some of the obstacles to digging and/or boring more ubiquitously. The present disclosure provides equipment and adapter assemblies that can broaden the use of the technology. In particular Skid-Steer loaders are more widely used as a more affordable option. These small platform loaders rely on weight being shifted to over the rear drive of the loader that is balanced when the Skid-Steer carries/supports a load.

SUMMARY

Skid-steer loader attachment assemblies configured to perform earth augering are provided. The attachment assemblies can include an attachment frame configured to couple to a boom assembly of the skid-steer loader, the attachment frame extending horizontally between lateral edges; a pair of outriggers, each of the outriggers associated with a lateral edge of the attachment frame; and an auger assembly operatively engaged with the attachment frame between outriggers.

Methods for performing earth augering using a skid-steer are also provided. The methods can include extending dual outriggers from a boom assembly of a skid-steer to engage substrate; and extending an earth auger into the substrate from an auger assembly that is operably engaged between the dual outriggers.

Skid-steer loader and attachment assemblies configured to perform earth augering are also provided. The loader and attachment assemblies can include a skid-steer loader equipped with a boom assembly extending from the skid-steer to an attachment end of the boom assembly; an attachment frame coupled to the boom assembly of the skid-steer loader, the attachment frame extending horizontally between lateral edges; a pair of outriggers, each of the outriggers associated with a lateral edge of the attachment frame; and an auger assembly operatively engaged with the attachment frame between outriggers.

Boring assembly coupling assemblies are also provided. The coupling assemblies can include: a boring member configured to be rotated when boring/augering, the boring member terminating in a first flange; and an auger adapter configured to couple with an auger bit, the auger adapter comprising a second flange configured to compliment and reversibly couple with the first flange.

DRAWINGS

Embodiments of the disclosure are described below with reference to the following accompanying drawings.

FIG. 1 is a depiction of skid-steer loader and attachment assembly according to an embodiment of the disclosure.

FIG. 2 is another view of the skid-steer loader and attachment assembly of FIG. 1 in at least three configurations according to embodiments of the disclosure.

FIG. 3 is yet another view of the skid-steer loader and attachment assembly of FIG. 1 in at least two configurations according to embodiments of the disclosure.

FIG. 4 is another view of the skid-steer loader and attachment assembly of FIG. 1 in another configuration according to an embodiment of the disclosure.

FIG. 5 is a top view of the skid-steer loader and attachment assembly of FIG. 4 according to an embodiment of the disclosure.

FIG. 6 is a detailed view of an attachment frame of a skid-steer loader attachment assembly according to an embodiment of the disclosure.

FIG. 7 is another detailed view of the attachment frame of FIG. 6 according to an embodiment of the disclosure.

FIG. 8 is a detailed view of the mast coupling assembly of the skid-steer loader attachment assembly according to an embodiment of the disclosure.

FIG. 9 is a detailed view of the mast, coupling assembly, and attachment frame according to an embodiment of the disclosure.

FIG. 10 is a detailed view of the attachment frame and coupling assembly according to an embodiment of the disclosure.

FIG. 11 is a detailed view of the outriggers and hydraulic assemblies associated therewith according to an embodiment of the disclosure.

FIG. 12 is another detailed view of the outriggers of FIG. 11 according to an embodiment of the disclosure.

FIG. 13 is a working view in two configurations of the skid-steer loader and attachment assembly depicted in FIG. 1 according to an embodiment of the disclosure.

FIG. 14 is a Kelly bar assembly according to an embodiment of the disclosure.

FIG. 15 is a series of configurations of a Kelly bar and auger assembly according to an embodiment of the disclosure.

FIG. 16 is a depiction of an auger adapter according to an embodiment of the disclosure.

DESCRIPTION

This disclosure is submitted in furtherance of the constitutional purposes of the U.S. Patent Laws “to promote the progress of science and useful arts” (Article 1, Section 8).

The construction equipment and adapter assemblies of the present disclosure will be described with reference to FIGS. 1-16. Referring first to FIG. 1, construction equipment 10 is shown that includes machine or skid-steer loader 12 operably coupled to an attachment assembly 14. Attachment assembly 14 can be configured to drill holes in substrate such as earth, for example, utilizing an auger. Attachment assembly 14 can include an auger assembly that can include a vertically sliding mast 16 extending to a headblock structure (boom) 18 which extends to a set of extendible Kelly bars 20. Additionally, attachment assembly 14 can include a pair of dual side outriggers 22. Outriggers 22 can be extended during operation of the auger assembly in boring or digging operations, or they can be extended for storage of the attachment assembly when detached from skid steer 12.

In accordance with example implementations, distance 13 from the front of the skid steer boom to the far edge of the assembly can be less than five feet or about 4′-9″; distance 15 between the uppermost portion of the attachment and the end the Kelly bar assembly when recoiled can be less than 7 feet or about 6′-11″; distance 17 between the uppermost portion of the attachment and the supporting surface can be less than 10 feet or about 9′-11″. Distance 19 between the end of the recoiled Kelly bar assembly and the surface can be less than 3 feet.

Referring next to FIG. 2, in accordance with example implementations, attachment assembly 14, particularly auger assembly that includes mast 16 and Kelly bar assembly 20, can be configured to rotate along an axis aligned normal to their extended axis. As shown, the auger assembly can be rotated between a horizontal position (typically used for storage or travel) and a vertical position (typically used for augering/boring).

Additionally and in accordance with example implementations, side tilt 21 can be as much as 90 degrees, with alternating side tilt 23 being as much as 90 degrees. In accordance with example implementations, tilt 21 can be −90 degrees and tilt 23 can be +90 degrees. An example distance 25 for wheel support base can be 6 feet or less. Utilizing side tilt the attachment assembly can be used to provide holes that offset from perpendicular to the surface of the substrate being augered/bored.

Referring next to FIG. 3, the mast 16 and Kelly bar assembly 20 can be configured to rotate or hinge upon the axis of the boom, allowing for the transition of the Kelly bar 20 in relation to mast 16. For example, angle 33 is shown at about 75 degrees, however angle 33 can rotate as much as 180 degrees. This hinged configuration in relation to the attachment frame can allow for the mast to be between the attachment frame and Kelly bars in one configuration (typically when actively augering/boring) and another wherein the mast and Kelly bar face the attachment frame (typically in storage or transport).

Referring next to FIG. 4, in one operable configuration, mast 16 and Kelly bar assembly 20 can be configured for transport by aligning mast 16 and Kelly bar assembly 20 in a substantially horizontal relationship in relation to the skid steer as shown in an alternative view in FIG. 5, from a top level. This can provide for transport of the boom Kelly bar assembly between job sites or as desired. Accordingly, an overall height 41 of machine and attachment can be less than 7 feet and an overall length 42 of machine and attachment can be less than a little over 14 feet. Also, a distance 51 from the top of the attachment to the far outrigger can be less than 8 feet, and a distance 52 from the top of the attachment to the far perimeter of the wheel can be less than 8′6″ to provide for transport without permit.

Referring to FIG. 6, a more detailed view of the attachment frame 108 is shown that depicts outrigger members 102 within sleeves 100 along the lateral edges of the attachment frame. Hinge portions 114 are shown that are configured to engage complimentary hinge portions of the mast. In FIG. 7, a more detailed view of the pivotable coupling assembly 112 is shown that provides for the pivotable engagement of the auger assembly in relation to the attachment frame. FIG. 8 depicts the ringed coupling configuration of coupling assembly 112. FIG. 9 depicts the hydraulic cylinder actuator to move the auger assembly upon hinge coupling 114. FIG. 10 depicts ladder rungs 136 associated with attachment frame 108 as well as the rotation stops 130 and 132 of the coupling assembly 112.

In FIGS. 11 and 12, more detailed views of the outriggers are provided. Accordingly, members 102 can include handles 106 as well as be configured to be hydraulic actuated via cylinders 103. While the outriggers are depicted here as vertically sliding members, additional embodiments can include opposing arms with each arm pivotably mounted to the frame and extending to a foot. Each of the arms can be hydraulically controlled.

Referring next to FIG. 13, at least two configurations of the use of the attachment assembly in combination with skid steer 12 is shown. As can be seen, Kelly bar assembly 20 provides a depth up to 40′ when being utilized, while only occupying a 10′ height from elevation as shown. As is shown, the drill depth can be multiple times the height of the machine, and the machine can be small enough fit inside of buildings and dwellings in lieu of stating actual height and depth. Accordingly, distance 61 from the support surface to the base of a dig can be as much as 25 feet. Additionally, an auger width 62 can be as large as 36 inches.

Referring next to FIG. 14 and the accompanying details of FIG. 7, Kelly bar assembly 20 is shown that includes a swivel 201 coupled to a stop sleeve retainer 202 which is operatively coupled to a stop sleeve 203 which is operatively coupled to a stop ring 204. Additionally, the Kelly bar assembly can continue with a Kelly bar intermediate 206, a Kelly bar intermediate 207, and a Kelly bar intermediate 208 which is operatively coupled to a Kelly bar drive tube which is shown in more detail to include a nylon inserted locknut 210 as well as a stop sleeve 211 which is operatively coupled to a washer 212 and a bolt 213. In another detail, a washer wedgelock 214 can be operatively engaged with a bolt 215. Continuing on to the terminal end of the Kelly bar assembly 20, a spring housing 216 can be operably coupled to a spring elastomer 217 which is operatively coupled to a Kelly bar inner 218 which is engaged with the auger adapter assembly 221 which can be operably engaged using key stock 219 and spring pin 220. In accordance with example implementations, assembly 20 can include bolts 222 coupling washer 223 to plate spring 224 and plate spring spacer 225 coupled to bolts and washer wedgelocks 226 and 227. While pins, bolts, or keys may be referenced it is recognized that these coupled devices as well as friction itself may be used to affix one or more the components of the assembly.

Referring to FIG. 15, a more detailed view of the auger adapter 311 is shown in combination with auger 80. Referring next to FIG. 16, a detailed view of auger adapter 311 is shown.

In compliance with the statute, embodiments of the invention have been described in language more or less specific as to structural and methodical features. It is to be understood, however, that the entire invention is not limited to the specific features and/or embodiments shown and/or described, since the disclosed embodiments comprise forms of putting the invention into effect. 

1. A skid-steer loader attachment assembly configured to perform earth augering, the attachment comprising: an attachment frame configured to couple to a boom assembly of the skid-steer loader, the attachment frame extending horizontally between lateral edges; a pair of outriggers, each of the outriggers associated with a lateral edge of the attachment frame; and an auger assembly operatively engaged with the attachment frame between outriggers.
 2. The skid-steer loader attachment assembly of claim 1 wherein the attachment frame further comprises a pair of sleeves, each of the sleeves defining one of the lateral edges of the attachment frame and configured to slidably engage an outrigger.
 3. The skid-steer loader attachment assembly of claim 2 further comprising hydraulic pistons operably aligned with each of the outriggers.
 4. The skid-steer loader attachment assembly of claim 1 wherein the auger assembly further comprises a mast and Kelly-bar assembly.
 5. The skid-steer loader attachment assembly of claim 4 wherein the mast is pivotably coupled to the attachment frame and operable to rotate the mast and Kelly-bar assembly between a horizontal position to a vertical position.
 6. The skid-steer loader attachment assembly of claim 4 wherein the mast is hinged to the attachment frame and operable to swing between a first position wherein the Kelly-bar assembly and mast face the attachment frame, and a second position wherein the mast is between the Kelly-bar assembly and the attachment frame.
 7. A method for performing earth augering using a skid-steer, the method comprising: extending dual outriggers from a boom assembly of a skid-steer to engage substrate; and extending an earth auger into the substrate from an auger assembly that is operably engaged between the dual outriggers.
 8. The method of claim 7 wherein the extending the dual outriggers comprises operatively engaging a hydraulic system to slide outrigger posts within sleeves of an attachment frame.
 9. The method of claim 8 further comprising extending each of the dual outriggers separately.
 10. The method of claim 9 further comprising, prior to extending the earth auger into the substrate, rotating an earth auger assembly from a horizontal position to a vertical position.
 11. The method of claim 10 further comprising swinging the earth auger assembly upon a hinge to align a mast of the earth auger assembly between Kelly-bars of the earth auger assembly and the boom assembly.
 12. The method of claim 7 further comprising extending the earth auger at an angle other than perpendicular to the substrate surface.
 13. A skid-steer loader and attachment assembly configured to perform earth augering, the loader and attachment assembly comprising: a skid-steer loader equipped with a boom assembly extending from the skid-steer to an attachment end of the boom assembly; an attachment frame coupled to the boom assembly of the skid-steer loader, the attachment frame extending horizontally between lateral edges; a pair of outriggers, each of the outriggers associated with a lateral edge of the attachment frame; and an auger assembly operatively engaged with the attachment frame between outriggers.
 14. A boring assembly coupling assembly, the assembly comprising: a boring member configured to be rotated when boring/augering, the boring member terminating in a first flange; and an auger adapter configured to couple with an auger bit, the auger adapter comprising a second flange configured to compliment and reversibly couple with the first flange.
 15. The boring assembly coupling assembly of claim 14 wherein the auger adapter further comprises a complimentary shaft configured to couple with the auger bit. 